Portable post.



110.771.057. PATENTED SEPT. 27, 1904.

I H. S. GAY.

PORTABLE POST. APPLIOATIOK FILED MAR. 18, 1904.

i l ll a .9 a j In Patented September 27, 1904.

HARRY S. GAY, OF SHAMOKIN, PENNSYLVANIA.

PORTABLE POST- SPEOIFICATION forming part of Letters Patent No. 771,057,da ed September 27, 1904. Application filed March 18, 1904. Serial No.198,741. (No model.)

To all whom, it may concern: I

Be it known that I, HARRY S. GAY, a citizen of the United States,residing at Shamokin, in the county of Northumberland and State ofPennsylvania, have invented new and useful Improvements in PortablePosts, of which the following is a specification.

This invention relates to certain new and useful improvements inportable posts particularly adapted for supporting the overhanging wallsor roofs when mining, although the post is adapted for any use for whichit is applicable.

The invention further aims to provide a portable post provided withmeans which will permit of adjusting the height of the post and also topermit of removing the post when occasion requires.

In the method of extracting ores and minerals from their native beds itis frequently necessary, for the purpose of maintaining means of egressand ingress for the continuation of the work and for the protection oflife. to support the overhanging walls or roofs by means of posts orprops. These posts or props are not adjustable, and in order to fit themclosely and rigidly in position it is necessary to remove a part of theroof or floor or more frequently to fill the intervening space betweenthe top of the post or prop and the roof with wedges, caps, or otherdevices by firmly driving them in place. Consequently there is noprovision made to facilitate the removal of the posts or props when itis desirable or necessary to do so. In fact, the operation of removingthe posts or props is laborious and costly, and often it is dangerousand at times it is impossible to move the posts or props owing to thesinking of the overhanging walls or roofs. Therefore this invention aimsto provide a new and novel form of post which will permit of its removaland also permit of its being adjusted to rigidly retain it in positionwhen occasion requires.

The invention further aims to provide a portable post for mining andother usages which shall be extremely simple in its con struction,strong, durable, eificient in its use,

and comparatively inexpensive to manufacture and set up.

With the foregoing and other objects in view the invention consists ofthe novel combination and arrangement of parts hereinafter morespecifically described, illustrated in the accompanying drawings, andparticularly pointed out in the claims hereunto appended.

In describing the invention in detail reference is had to theaccompanying drawings, forming a part of this specification, whereinlike reference characters denote corresponding parts throughout theseveral views, and in which- Figure 1 is a sideelevation of a portableand adjustable post constructed in accordance with my invention. Figs. 2and 3 are respectively a sectional elevation and a side elevation of amodified form of post constructed in accordance with my invention. Fig.4 is a side elevation of a modified form of post constructed inaccordance with my invention. Fig. 5 is a top plan view of any form ofpost, showing the coupling for establishing communication between thechamber in the upper end of the post and a fluid-supply. Fig. 6 is asectional plan of any form of post, showing the fluidchamber; and Fig. 7is a sectional detail of a modified form of inlet-opening for thefluidchamber.

Referring to Fig. 1 of the drawings, l'denotes the body of the post,which is solid and constructed, preferably, of wood and is provided witha plurality of grips 2 to permit of handling the post. One end of thebody portion 1 has secured thereto in any suitable manner, as at 3, acasing 4, which forms a fluidchamber 5. The casing 4 is provided with ascrew-threaded inlet-nipple 6. To the latter is connected avalve-coupling 7, which communicates with asource of fluid-supply.Preferably the valve-coupling 7 is connected with the fluid-supplythrough the medium of flexible hose. The casing4 is open at its top, andwithin the chamber 5 operates a plunger 8, against which is placed acushion 9. As shown, the lower end of the plunger is slightly rounded.The cushion 9 may be of any suitable material. The body portion 1 ispreferably mounted upon the end block 10, which is of any suitablematerial.

In the form of post shown in Figs. 2, 3, and 4c the adjustable partsthereof are constructed in the same manner as that shown by Fig. l, andconsequently the same reference characters are applied thereto. In theform of the post shown in Figs. 2 and 3 an end block of the samecharacter as that shown in connection with Fig. 1 is also employed. Thedifferences between the structure shown in Figs. 2 and 3 and that ofFig. 1 is that in Figs. 2 and 3 the body portion is hollow andconstructed of a vertically-extending metallic cylinder 11, providedwith integral grips 12. As to Fig. 4c, the body portion is constructedof a plurality of separate metallic sections 13, suitably bolted orriveted together, as at 1 k, and which forms the body portion of thepost hollow. The ends of the sections 13 are enlarged, as at 14, to forman integral end block for the same purpose as the end blocks 10.

In Fig. 7 is shown a modified construction of inlet-nipple, and in thisconnection the nipple 15 is provided with the cutoff 16 and may bescrew-threaded exteriorly or interiorly, as shown exteriorly, as at 17to receive the end of the fluid-supply pipe.

When any of the forms of the post are adapted to be used, they areplaced under the roof or overhanging wall which is to be supported, theend block placed at the bottom of the body portion of the post,and thecushioning device mounted upon the top of the plunger 8. Thefluid-supply pipe is connected to the inlet-nipple and the valve isopened, so that the fluid can elevate the plunger to the proper heightuntil the post is rigidly secured in position. It may be now stated thatthe liuid employed is preferably water. The supply of fluid is then cutoff, and the fluid-supply pipe is then disconnected and the operationrepeated for any number of similar posts. When it is desired to removethe post, the valve is opened, which will permit of thefluid exhaustingfrom the chamber 5 and allowing the plunger to lower. Consequently thepost can be removed without any trouble to the position where it is tobe employed for again supporting the roof or overhanging wall. It willalso be evident that the post can be used in a reverse manner to that asstated. For example, the cushion 9 may be placed on the floor and thepost mounted thereon, with the plunger 8 resting on the cushion 9 andthe end block 10 interposed between the post and the overhanging wall orroof. l/Vhen the post is used in the manner as just set forth, the endblock 10 or 14 becomes the headblock and the cushion 9 the base-block,but when the post is used so that the plunger will be arranged at theupper end thereof the block 10 becomes the base-block and the cushion 9the head-block.

It is thought that the many advantages of the portable and adjustablepost used for mining purposes can be readily understood from theforegoing description, taken in connection with the accompanyingdrawings, and it will furthermore be evident that changes, variations,and modifications can be resorted to without departing from the spiritof my invention or sacrificing any of its advantages, and I therefore donot wish to restrict myself to the details of construction hereinbeforedescribed, and set forth in the annexed drawings, but reserve the rightto make such changes, variations, and modifications as come properlywithin the scope of the protection prayed.

Having thus fully described my invention, what 1 claim as new, anddesire to secure by Letters Patent, is

1. A portable and adjustable post comprising a body portion, a casingpermanently connected with the top thereof and forming a fluid-chamber,a vertieally-adjustable plunger operating in said chamber, and means forconnecting said chamber with a fluid-supply to vertically adjust theplunger.

2. A'portable and adjustable post comprising a body portion, a casingsuitably con nected with the top thereof and forming a fluid-chamber, avertically-adjustable plunger operating in said chamber, means forconnecting said chamber with a fluid-supply to vertically adjust theplunger, a base for the bottom of said body portion, and a cushioningmeans mounted upon the piston.

3. A portable and adjustable post comprising a body portion, avertically-adjustable means carried thereby for increasing the height ofthe post, and a plurality of grips suitably connected with the bodyportion of the post.

4. A portable and adjustable post comprising a hollow body portion,avertically-adjustable plunger carried by the upper end thereof andadapted to increase theheight of the post, and means for supplying andexhausting a fluid to and from the upper end of the post to adjust theplunger.

5. A portable and adjustable post comprising a body portion, avertically-adjustable plunger permanently carried by the upper endthereof and adapted to increase the height of the post, and means forsupplying and exhausting a fluid to and from the upper end of the postto adjust the plunger.

6. A portable and adjustable post comprising a hollow body portion,avertically-adjustable plunger carried by the upper end thereof andadapted to increase the heightof the post, means for supplying andexhausting a fluid to and from the upper end of the post to adjust theplunger, and a cushioning means mounted upon the upper end of saidplunger.

7. A portable and adjustable post comprising a body portion, avertically-adjustable plunger carried by the upper end thereof andadapted to increase the height of the post, means for supplying andexhausting a fluid to and from the upper end of the post to adjust theplunger, and a cushioning means mounted upon said plunger.

8. A portable and adjustable post comprising a hollow body portion, avertically-adjustable plunger carried by the upper end thereof andadapted to increase the height of the post, means for supplying andexhausting a fluid to and from the upper end of the post to adjust theplunger, and grips suitably connected with the body portion.

9. A portable and adjustable post comprising a body portion, avertically-adjustable plunger carried by the upper end thereof andadapted to increase the height of the post, means for supplying andexhausting a fluid to and from the upper end of the post to adjust theplunger, and grips suitably connected with the body portion.

10. A portable and adjustable post comprising a body portion, avertically-adjustable plunger carried by the upper end thereof andadapted to increase the height of the post,

means for supplying and exhausting a fluid to and from the upper end ofthe post to adjust the plunger, a cushioning means mounted upon saidplunger, and a base for the body portion.

11. A portable and adjustable post comprising a body portion, andafluid-operated means secured to one end of the body portion and adaptedto increase the length of the post.

12. Aportable and adjustable post comprising a hollow body portion, anda fluid-operated means secured to the body portion and adapted toincrease the length of the post.

13. Aportable and adjustable post comprising a body portion, afluid-operated means secured to the body portion and adapted to increasethe length of the post, and grips suitably connected with the bodyportion.

14:. Aportable and adjustable post compris ing a hollow body portion, afluid-operated means secured to the body portion and adapted to increasethe length of the post, and grips suitably connected with the bodyportion.

15. A portable and adjustable post comprising a body portion, afluid-operated means secured to the body portion and adapted to increasethe length of the post, and a cushioning means mounted upon said fluidoperated means.

16. A portable and adjustable post comprising a body portion, afluid-operated means secured to the body portion and adapted to increasethe length of the post, a cushioning means mounted upon said fluidoperated means, and a base for said body portion.

17 A portable and adjustable post comprising a hollow body portion, afluid-operated means secured to the body portion and adapted to increasethe length of the post, a cushioning means carried by saidfluid-operated means, and a base for said body portion.

18. A portable and adjustable post comprising a body portion,afluid-operated means secured to the body portion and adapted toincrease the length of the post, a cushioning means mounted upon saidfluid operated means, a base for said body portion, and grips suitablyconnected with the body portion.

19. A portable and adjustable post comprising a hollow body portion, afluid-operated means secured to the body portion and adapted to increasethe length of the post, a cushioning means carried by saidfluid-operated means, a base for said body portion, and grips suitablyconnected with the body portion.

20. A portable and adjustable supportingpost comprising a body portion,a casing permanently connected with one end of the body portion andforming a fluid-chamber, a vertically-adjustable plunger operating insaid chamber, said body portion, casing and plunger bodily movabletogether, and detachable means for connecting said chamber with afluid-supply to vertically adjust the plunger.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

HARRY S. GAY.

Witnesses:

NAAMAN JACKSON, J. E. BURLEND.

